February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer ChallengeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Intersecting a Ray with a Cylinder
Either the ray misses the cylinder or it hits the cylinder. Right? This dichotomy neatly describes the tests you’ll write first. You’ll start by confirming that a ray misses a cylinder. Such tests can be made to pass trivially, but rather than passing them by making your local_intersect method do nothing, this provides a good opportunity to start actually implementing the intersection routines.
Test #1: A Ray Misses a Cylinder
Show that the local_intersect function correctly identifies when a ray misses a cylinder.
This test creates a cylinder and casts three different rays at it. The first ray is positioned on the surface and points along the +y axis, parallel to the cylinder. The second is inside the cylinder ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.